android intent
You should use intent to communicate between activities and services
intent extra
package data from activity
create a intent instance
Intent intent = new Intent(getBaseContext(), SignoutActivity.class); intent.putExtra("key", value); startActivity(intent);
package data from service
Intent intent = new Intent(context, SignoutActivity.class); intent.putExtra("key", value); startService(intent);
Access data in activity
Access that intent on next activity String s = getIntent().getStringExtra("EXTRA_SESSION_ID"); The docs for Intents has more information (look at the section titled "Extras").
Access data in Service
just use the Intent parameter from onStartCommand
public int onStartCommand (Intent intent, int flags, int startId) { String userID = intent.getStringExtra("UserID"); return START_STICKY; }
intent plags
see http://stackoverflow.com/questions/21833402/difference-between-intent-flag-activity-clear-task-and-intent-flag-activity-task